†Otodus poseidoni ustyurtensis Zhelezko 1999 (mackerel shark)
Chondrichthyes - Lamniformes - Otodontidae
Full reference: V. I. Zhelezko. 1999. Taxonomic names, in Elasmobranchii and Palaeogene biostratigraphy of Trans Urals and central Asia. Materials on the Stratigraphy and Paleontology of the Urals 3:1-323
Belongs to Otodus poseidoni according to V. I. Zhelezko 1999
Sister taxa: Otodus poseidoni poseidoni, Otodus poseidoni turanensis
Type specimen: Zh-T2/E11, a tooth
Ecology: nektonic carnivore
Distribution: found only at Ungoza (Amankizilit Fm) (Eocene of Kazakhstan)